assume X: is the usb-stick drive letter

run following as administrator:

1. delete all partitions on your stick

2. create one primary partition and mark it as active

3. format that partition with FAT32

4. syslinux\syslinux.exe -fma X:

5. xcopy usb-root\* X:\ /E/H/I

6. copy your flash tool and flash binary into the flash\ folder

7. reboot

8. press [Enter] at syslinux boot: prompt

9. double press [Enter] while your asked to change date and time

your done! have fun!